Home / 660,077,223.60-990,115,835.40-199,955,605.80

Finding the Fourth Proportional to 660,077,223.60, 990,115,835.40 and 199,955,605.80

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Solution

The fourth proportional to 660,077,223.60, 990,115,835.40 and 199,955,605.80 is: 299,933,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,077,223.60 : 990,115,835.40 = 199,955,605.80 : x
  2. Step 2: Convert to fraction form
    660,077,223.60/990,115,835.40 = 199,955,605.80/x
  3. Step 3: Cross multiply
    660,077,223.60x = 990,115,835.40 × 199,955,605.80
  4. Step 4: Simplify right side
    660,077,223.60x = 197,979,211,679,580,096
  5. Step 5: Solve for x
    x = 197,979,211,679,580,096/660,077,223.60
  6. Step 6: Final answer
    x = 299,933,408.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.